The best concert ever

About four years ago, I went to a Concert of Katy Perry, and it was so improvised that I don't remember where it was haha. I remember that it was in march, I remember, because she went for the march 8 in Chile, that I was in a protest and a friend told me that she had two tickets for the concert, that was a gift of her stepmother.

So, then i went to the subway to find my friend, we bought two handrolls, because it was like 8 pm, time to have dinner in my daily life.

I don´t know so much about Katy Perry, I just went because she was a gift and in general language, Katy Perry is great, just that I am not a fan. I know that she sing pop, she had songs very great, like california girls, I kiss a girl and hot n cold. I remember to, that the atmosphere was so really good, the people were very excited, all the persons sang with so much energy, and I don't really knew all the songs and neither my friend, but we sang and danced every song like if we were big fans.

And, finally, the most iconic thing of that, was that in that moment, was so famous the viral step "swish swish", so all the people danced it.